Internal-combustion engine.



C. RADIGUER.

INTRNAL COMBUSTIN ENGINE.

APPLICATION HALED FEB. 1. |915.

1,205,480. Patented NOV. 2l, 1916.

UNITED STATES PATENT oFF-ion.

CHARLES RADIGUER, ,or sT. DENTS, FRANCEi ASSIGNOE To THE SOCIETE ANONYMEDES TABLISSEMENTS DEEAUNAY-EELLEVILLE- 0F sT. DENIS, FRANCE, A.v CORPO-EATION oF FRANCE.

INTERNALCOMBUSTIN ENGINE.

Paten ted Nov. 21, .1916.

i Application.ledebruary 1 1915. Se1-ia1No..5,-55 B. l

Be it known that I. (ffl-marais Rimowa, u .ritizen of the FrenchRepublic.. residing at Denis. Departn'lent ot the Seine. in Franre, haveinvented; certain new andv usetnl linpro'venients in or Relatingr tolnternal-tolnbustion Engines; and I do hereb)I declare the following; tobe. a` iull'..olear. and exact deseriptir-)n of the invention.' such aswill enable others skilled in the art to which it appertains to make anduse thel san-1e.

This invention relates toatoinizersor injectors for internal combustionenginesand has for its' object to l'noride an a-tornizer .of the typeshown in the British atentjNo.- 6397. of March 15.. 1913, soinodi'ed asto adapt tliesalue for use in engines-of the Bellcrn type in whichCarburation is ei'ected in a rareied atinosphe're..A Engines ofthis trpeoperate oirthe four-cycle pitineiple,the opening ott-he inainairadmisismi valve he ings.T retarded so that during-the h'rst-v portionofthe suc'ftion stroke. a partial .racuurn is produced in the clvlinder.During' this period` the fuel 1s drawn into the cylinder. atoinized. andraporizjed under the action of the vacuum. so that the. Carburation.effected is far superior to that which is 'obtained b v the use of theordinary carbureters. The

injection of the fuel in this tipe. oll engine' is effected byatoniizers similar tothose. used in Diesel engines. the fuelibeingconducted into the cylinder and atonnzed by a- Current of air-,l3nt thearirf is.notacon'ipressed, it being' merelynlr atvatxnospherro',.pressure drawn into-the cylindendue.' to the creation'ott-he pair-tial vacuum therein? An atoniizei: of the. saine gener-altype fis thatherein disclosed oonstitittes` the 'subject'- rnattjerA of.the 'obere-mentioned '.piitent, but

-it i'sdesig-nefd especially for hse ill-Diesel engines. Thedifiere-neef: betweenthe present -atolnizer and thatv shown 'in theaforo said :British 'pa tent' which adapt the presentatomizer for use inengines of the'. type de.- soribed above will apparent fromI the; fol

'lowing description.

,Theimproved atomizer is4 illustrated in the'zneoompanying drawing inwhich 'Fig-ure 1 15 a. vertical: Section, taken ori-the zontnl section,taken on.the; line. Y-Y of Fig. 1.,

The parts of theatomiz'er :nehoused by tliefsuot-on. in the enginezoylifntleig;l

a casing' which may either be a portion of the engine cylinder or asepara teport-ion applied thereto. liounted in the casing is a sleeve lha rnfx'an annular portion il pro-' eating ,toward the rear of theatolnizer.

This annular portion Q- telescopes into a con responding annular portion3 formed on a sleere 4f and fits loosel)y therein to .provide an annularfuel passage u. This i'nel passage .G communicates with an annular fuelreserroir 5 formed in the sleeve 4. Fuel is sup plied to the reservoir 5through' a uel passage an annular .f.l .u'et =14 formed in the sleeve-1L, and a plurality of radial passages lnplaoing said annu1ar. duct 14Cin oonnnu- -nrcation wlth-.the reservolr 5.

Air is su'pplied to the atornizer through passages l1 viorinediii-another sleerelG,a portion of such air beingy conducted to thetu'el` reservoir 5 through passages 10 formed in thenpper n portion oftl1esleev.eg4. .Co-axially disposed with respect tothe .sleeies 1G. a;and 1'- and.

tance from the surfaceA of theralive (i, sons to; form an annularspaoe 9toi whioliair is admitted through the annular passage and:t0l whichfuelis admitted `fronathe.fuel I reservoir 5 by a. pluralityO15-.tangentialpass.-

sa'gesff' platingr the-annular fuel passage 6 'in con'nnunioation.withsuch s'pirce');

ItA will benoted that the' walls' .ofitlieopening in the lowerportion ofj the sleeiie 'Id iace'ot the lower portion of the Iva e 'E'.

This lower portion of the talvetzipersand divergres toward the outlet.of the.atoniizer 1 n sue-li a .-'inannerz as to. form a narrow'andooi-iverges toward the outlet. The extreinit'a-l'. portion of...the.Valve E :is more direi-gent;.l than the. tapering portion -abovereferreclto 'and-.seats upon' on adjacent portion r of th sleeve. I,'as' :clearly showin in the drawing*

